Simple access numbers across Europe and beyond

Service Access Numbers make your business more accessible across diverse markets and workforce. With Colt you can collect calls from 13 European countries. Then, with a single web interface, you can deliver them anywhere in the world. You choose the best tariff for your customers; freephone, IN Geo, shared cost or premium rate.


Reduce costs not matter how diverse your organisation

Cost Effective

By using Colt as your single service provider across Europe, you’ll simplify billing and reduce administrative overheads for all your calls.


No matter how spread out your organization is, you can have a simple point of control to manage all call traffic. And deliver them anywhere in the world.


Our Pan-European network helps you maintain a presence in markets even where you don’t have offices or staff working.

Slice 1

Florian Schürfeld


The set-up of the new telephony solution was hassle free, we have everything under control and it is great that we only have one contact for technical questions or possible extensions in all relevant countries. This has made our lives much easier.

Service Access Numbers with complete control


We give you a suite of tools and automated reports to give you a complete view and control of how your Service Access Numbers are performing.


Through a single web interface, and easy to use online portal, you can make or schedule any changes based on how your international access numbers are performing.


We give a range of choices from routing to service packages and tariffs. You get to decide the best options for your business and your customers.

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For a no obligation quote and to see ranges of countries and numbers click here.

How To Contact Us

Arrange a consultation with a specialist.


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+44 (0) 20 7863 5510